Question

Robin randomly selects a number between 1 and 20. What is the probability that the number selected is the square of a natural number?
a.1/2
b.-3/20
c.-3/10
d.1/5
e.1/3

Answer 1

P(Square number selected)=Number of square numbers / Total number of numbers

Answer 2

so?

Answer 3

It's against Open Study to tell you answers I'm afraid. But i can try and help you :) Did you understand what i just said?

Answer 4

nope

Answer 5

How man numbers between 1 and 20 are squares of natural numbers?

Answer 6

*many

Answer 7

what are natural numbers

Answer 8

natraul numbers are whole numbers

Answer 9

do you get it now

Answer 10

so how do you find out

Answer 11

You list the numbers between 1 and 20 that are perfect squares. How many are there?

Answer 12

you mean like 4,9,16?

Answer 13

something like that but, i would say yes

Answer 14

so is it 3?

Answer 15

3 squares?

Answer 16

i would say so

Answer 17

No, you are forgetting one. Literally. ;)

Answer 18

Also, 3/20 is not an answer choice. So that should be a red flag.

Answer 19

oh true so itll 1/5

Answer 20

wait a sec

Answer 21

it most likely is 1/5 now i got to go

Answer 22

ok

Answer 23

Yes, 4 squares out of 20 numbers = 4/20 = 1/5